The National Weather Service says a moderate to strong Santa Ana wind condition is expected to rapidly develop Saturday night and continue through Sunday night.

Red flag warnings will be in effect during the period as relative humidity levels plunge into single-digit percentages and gusts reach up to 60 mph (96 kph) in the mountains of Los Angeles and Ventura counties. Gusts in the valleys will range up to 45 mph (72 kph).

Forecasters say it will be a short-lived event followed by a showery pattern Monday through Thursday, with snow levels falling as low as 3,500 feet (1,066 meters).